Hey all, I have a 1984 Toyota with a 1982 22r in it. I don't know how many miles the motor has on it, but I know from the looks of it, it hasn't been rebuilt. I have a 1985 engine block in need of a rebuild.

The goal of this toyota is to be a badass everyday driver. Should I rebuild the 82 motor to put in it or the 85 block?

What are the pros and cons.

 

85 block and heads are not interchangeable with the /84 ... so you need to choose one or the other ...

because of wiring , sensors , and plugs , and what the recipient is , I would go with the /84




.

 

I have both the running '82 and the '85 block and head. Both need full rebuilds. You are recommending the '82?

 

It sounds like you have the 82 engine apart already if you can tell by looking it has not been rebuilt.

to install the 85 engine you would need most likely a engine harness all the sensors and ecu then merge the vehicle harness with the newer engine harness

 

Well its the 22r, so both are carb. engines. wiring, close to identical. Have weber 32/36 on the the 1982 currently.

 

I like the 84 motor, but for myself, I would prefer the 85. Reason being as the 85 block was on a 10 year run before being traded out for the newer motors in 95. The 84 was only a two or three year run. I am going for the long term ownership and parts are going to be easier to get for the 85 in the future compared to the 84.

Going with a Webber and being an 85 22r would eliminate some issues and it will be a basic motor. Same thing could probably be said for the 84 motor as well. Even though you said 82, I am using the 84 and 85 years for differences.

My 2 cents on pros and cons, both are getting old and not sure about the future on that.

 

the 84 22r is bad ass, more torque, less hp. But the head alone is over 1,000 for a remanufactured one from lce due to the short run they had. I would go with the 85.

 

I've rebuilt a few 22R engines and I would prefer to do the 85. Reason being is that there are new head castings available for the 85, but not the 82. It can actually cost you just as much to have the head work done and rebuilt as it would for a completely built newly casted head.

By no means can you marry the two engines together - the block and cylinder deck heights on the 82 are taller than the 85 - flip flop the heads and blocks is a no no

 

Thank you very much for the help. I will go ahead and do the later motor

 

I have to chime in that the early motor likely already has the dual row timing chain going for it. Dual row till 83 IIRC.

Other than that the 85 would be the better bet for sure for all the reasons above and you can change it over to dual row fairly easily and cheaply.

 

Am I wrong when I say that the motor mounts are slightly different either on the frame or on the motor with 85+ blocks compared to 81-84? And I had a thermostat for a 85+ 22r or re (190 deg) on my 81 22r and it would run hot, check out for it.

 

I prefer the older engines myself. There are different performance options available on the cheap for the older version with a carb (mainly in using a 20r head for cheap low-end power gains vs buying a performance 22r head) I'm a carb guy. They also have factory dual row timing chains. Note that the whole 'hybrid' thing is nice, but the benefits can be quite overstated.

If you're keeping it stock or very mild there isn't any performance advantage except that the fuel-injected R engines have a performance and drivability edge on carbs. Carb engines stock are a wash between early vs late. In fact, carb engines are a practical wash between 20R's, early or late 22R's. Never noticed any appreciable difference in usable power.

Later engines are better for mid-range performance with injection or high-end performance with the turbo setup. Converting them to dual-row timing chains is very easy, even for a layman.

Earlier and later engines can be supercharged at great expense. Unless you're a freak like me you'd just swap in a 3rz at that point. Much more sensible.

In the end, it's mostly personal preference. I prefer old ones.